基础释义
行业词典释义

福克斯词典 \ 英汉词典 \

durain是什么意思？

durain

英['djʊəreɪn] 美['djʊəreɪn]

n. 暗煤（硬块）；

相关单词 clarodurain metadurain

行业词典

地质学：暗煤；
煤炭：暗煤；光泽暗淡、致密、坚硬的煤岩成分。可含大量矿物质。在煤层中以较厚分层出现。；

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